diff --git a/python/mozbuild/mozbuild/backend/recursivemake.py b/python/mozbuild/mozbuild/backend/recursivemake.py
index 858d4d40cefb..f9f788f55c3d 100644
--- a/python/mozbuild/mozbuild/backend/recursivemake.py
+++ b/python/mozbuild/mozbuild/backend/recursivemake.py
@@ -1201,8 +1201,9 @@ class RecursiveMakeBackend(MakeBackend):
         self, obj, backend_file, target_variable, target_cargo_variable
     ):
         backend_file.write_once("CARGO_FILE := %s\n" % obj.cargo_file)
-        backend_file.write_once("CARGO_TARGET_DIR := .\n")
-        backend_file.write("%s += %s\n" % (target_variable, obj.location))
+        target_dir = mozpath.normpath(backend_file.environment.topobjdir)
+        backend_file.write("CARGO_TARGET_DIR := %s\n" % target_dir)
+        backend_file.write("%s += $(DEPTH)/%s\n" % (target_variable, obj.location))
         backend_file.write("%s += %s\n" % (target_cargo_variable, obj.name))
 
     def _process_rust_program(self, obj, backend_file):
diff --git a/python/mozbuild/mozbuild/test/backend/test_recursivemake.py b/python/mozbuild/mozbuild/test/backend/test_recursivemake.py
index 9ddb02bd2d31..d53063b30560 100644
--- a/python/mozbuild/mozbuild/test/backend/test_recursivemake.py
+++ b/python/mozbuild/mozbuild/test/backend/test_recursivemake.py
@@ -1011,10 +1011,11 @@ class TestRecursiveMakeBackend(BackendTester):
 
         expected = [
             "CARGO_FILE := %s/code/Cargo.toml" % env.topsrcdir,
-            "CARGO_TARGET_DIR := .",
-            "RUST_PROGRAMS += i686-pc-windows-msvc/release/target.exe",
+            "CARGO_TARGET_DIR := %s" % env.topobjdir,
+            "RUST_PROGRAMS += $(DEPTH)/i686-pc-windows-msvc/release/target.exe",
             "RUST_CARGO_PROGRAMS += target",
-            "HOST_RUST_PROGRAMS += i686-pc-windows-msvc/release/host.exe",
+            "CARGO_TARGET_DIR := %s" % env.topobjdir,
+            "HOST_RUST_PROGRAMS += $(DEPTH)/i686-pc-windows-msvc/release/host.exe",
             "HOST_RUST_CARGO_PROGRAMS += host",
         ]